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Rhodolite
Rhodolite

Phosgenite
Phosgenite



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Rhodolite
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Phosgenite

Rhodolite and Phosgenite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
Adamantine

Pleochroism

None
Weakly pleochroic with O reddish and E greenish in thick sections.

Dispersion

0.030.04
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.7602.117-2.145
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
tetragonal

Birefringence

0.010-0.0140.027
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Rhodolite and Phosgenite Optic Character

Rhodolite and Phosgenite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Rhodolite and Phosgenite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Rhodolite and Phosgenite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Rhodolite and Phosgenite Transparency

Similar to their colors, Rhodolite and Phosgenite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Rhodolite is while Rhodolite is in appearance.